Geometric and ligand effects in the infrared spectra of adsorbed carbon monoxide

Coadsorption of ethylene or oxygen with carbon monoxide has been investigated using ir transmission spectroscopy. Information on the extent of “electronic” and “dgeometric” (dilution) effects on the ir stretching frequency of CO has been obtained by the isotopic dilution method. The increase of this...

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Bibliographic Details
Published in:Journal of catalysis 1982, Vol.73 (1), p.50-56
Main Authors: Stoop, F., Toolenaar, F.J.C.M., Ponec, V.
Format: Article
Language:English
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Summary:Coadsorption of ethylene or oxygen with carbon monoxide has been investigated using ir transmission spectroscopy. Information on the extent of “electronic” and “dgeometric” (dilution) effects on the ir stretching frequency of CO has been obtained by the isotopic dilution method. The increase of this frequency (blue shift) caused by oxygen can be explained mainly by a compression of the CO layer. The decrease of the frequency (red shift) caused by ethylene can be explained for more than 60% by a dilution of the CO layer.
ISSN:0021-9517
1090-2694
DOI:10.1016/0021-9517(82)90079-3